Resumen

BENEVIDES, Y.I. et al. Ingestive behavior of ewes submitted or not to nutritional restriction during pregnancy. Arch. zootec. [online]. 2011, vol.60, n.232, pp.891-901. ISSN 1885-4494.  https://dx.doi.org/10.4321/S0004-05922011000400006.

This research was carried out in order to evaluate effects of pregnancy, fetus number and nutritional restriction on ingestive behavior of ewes. Were used 24 ewes of the breed Santa Ines evaluated at 90, 110 and 130 pregnancy days distributed among treatments according to fetus number. They received free or restricted diet, the last one with reduction of 15% of protein and energy requirements. Ewes were individually observed each five minutes for three days, being two periods of 24 h intercalated with 24 h of resting. During the observations was determinated the time spent in feeding, rumination, idle and chewing. Feed management did not influence time spent in feeding. In both pregnancy categories, at 90 days of pregnancy the animals spent less time in rumination and feeding. Ewes on nutritional restriction ruminate longer time and at 90 days of pregnancy spent less time ruminating. Ewes with twin fetus spent less time chewing than with single pregnancy. Pregnancy progress increased time spent to feeding, rumination ant chewing. Nutritional restriction increased idle time in ewes with one fetus. Ewes with single and twin pregnancy showed variable ingestive behavior at the studied phases.

Palabras clave : Feed management; Fetus number; Prepartum.

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